Mileage sign just south of Exit 18. For whatever reason, this mileage sign includes halves for each of its three listed destinations. It's 2 1/2 miles to the junction of MD 118, 9 1/2 miles to Rockville, and 23 1/2 miles to Washington DC. (Photo taken 11/5/15).

Take either of the next 2 exits to Germantown. (Photo taken 11/5/15).

If you're planning on going to Nationals Park via the Metro, use Exit 9A. (Photo taken 11/5/15).

Interstate 270 South at another crossover / express lanes entrance from the right. (Photo taken 11/5/15).

Interstate 270 South at Exit 4B: Montrose Rd West (Photo taken 11/5/15).

Interstate 270 South at Exit 4A: Montrose Rd East (Photo taken 11/5/15).

Keep left on Interstate 270 South for HOV access to Interstate 495 East and South. (Photo taken 11/5/15).

Interstate 270 South approaching the point at which it divides into I-270 South and I-270 Spur South - 1 mile. Use I-270 South to I-495 East. Use I-270 Spur South (right 3 lanes) to I-495 South toward Northern Virginia (and the shortest route to I-95 South). (Photo taken 11/5/15).

Interstate 270 South approaching its dividing point - 1/2 mile. Again, use the leftmost lane at this point for HOV access to Interstate 495 South or East.
(Photo taken 11/5/15).

Interstate 270 South as Interstate 270 Spur South branches off to the right to head to I-495 South toward Northern Virginia. Keeping to the right here is the fastest and shortest route to Interstate 95 South if you're headed to Richmond or points south of there. (Photo taken 11/5/15).

Overhead sign listing the distances to the three remaining exits / interchanges on Interstate 270 South. (Photo taken 11/5/15).

Interstate 270 South at its southern terminus, as you can exit to the left to go onto MD 355 South toward Bethesda or stay straight to go onto Interstate 495 East (Capital Beltway) toward College Park and Silver Spring. (Photo taken 11/5/15).